Hi ALe5, As you know, this is not a view/display problem or an underexposed capture, and I'm posting to confirm that the same misbehaviour is happening with your D90 file in Develop Persona of AP 1.8.3 on macOS: the app is behaving as if it is working with gamma-encoded data instead of linear data. My other raw developer apps do handle your file correctly. With my Sony .ARW files and with a .NEF file from a D610 that I have at hand, Develop Persona correctly behaves as if it is wo